Stefan Sullivan

Title: Innovations of Inventor Stefan Sullivan

Introduction

Stefan Sullivan is an accomplished inventor based in San Francisco, CA. He has made significant contributions to the field of digital signal processing and machine learning, particularly in the realm of vocal performance technologies. With a total of three patents to his name, Sullivan continues to push the boundaries of innovation in his industry.

Latest Patents

One of Stefan Sullivan's latest patents is a crowd-sourced technique for pitch track generation. This innovative approach employs digital signal processing and machine learning techniques within a vocal capture and performance social network. The technology allows for the computational generation of vocal pitch tracks from a collection of vocal performances that are captured against a common temporal baseline, such as a backing track or an original performance by a popular artist. By utilizing large numbers of performances of a song, the system can generate a pitch track that is both accurate and useful for karaoke-style vocal audio captures and other applications. The computationally determined pitch trackings from individual audio signal encodings of the crowd-sourced vocal performance set are aggregated and processed as an observation sequence of a trained Hidden Markov Model (HMM) or other statistical models to produce an output pitch track.

Career Highlights

Stefan Sullivan is currently employed at Smule, Inc., a company known for its innovative applications in music and social networking. His work at Smule has allowed him to collaborate with other talented individuals in the field, further enhancing his contributions to technology and music.

Collaborations

Some of his notable coworkers include John Shimmin and Dean Schaffer. Their collaborative efforts have played a significant role in the development of new technologies and innovations within the company.

Conclusion

Stefan Sullivan's work exemplifies the intersection of technology and creativity in the music industry. His innovative patents and contributions to Smule, Inc. highlight his commitment to advancing vocal performance technologies.